Problem or Use Case

GPT-5 from OpenAI throws errors when sent top-p, top-k, etc. It also renames the token length field. So I need to be able to adjust these fields in the Sampler so i can make valid requests to the various OpenAI models which have various finicky requirements.

Proposed Solution

Allow a Sampler to leave the field empty to exclude it from the request and also to add additional custom Key : Value params. This will allow the user to adjust which params are sent for a given Sampler, including additional unknown fields or removing existing fields.

Alternatives Considered

No response

Additional Context

No response